I figured I would get a follow up question regarding this :)
To be totally honest I might not need 1000 properties, but I am pretty sure it is close to 700.

I am trying to describe the control that operates the laundry equipment that we produce. When I query a control (washer or dryer), either through a network interface or through the infrared port, I receive a byte array of lenght 1300. Several of these bytes in the byte array represents one single property and some of the properties are represented by multiple bytes in the byte array.
So an instance of the class will represent a unique machine control (washer or dryer).

Now I guess I could split theproperties over several classes and then join them in one class, but I don't see too many benefits of doing this.

Einar